How to improve the pneumococcus vaccine



Pneumococcus kills 1 million children annually according to the World Health Organization. The key to the pathogen’s virulence is its thick sugar capsule, which is also the active ingredient in vaccines. Different strains have different capsules. Researchers just identified a new capsule for the pneumococcus — the 100th to be found after more than a century of research on the pathogen.



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